In this study ozone (O3) and ozone with hydrogen peroxide advanced oxidation (O3/H2O2) were used to treat typical constituents of hydraulic fracturing wastewater. The water contained guar gum (GG, a thickening agent) and glutaraldehyde (GLU, biocide). Both treatment processes were successful in improving biodegradability of the components as expressed by the BOD/COD biodegradability ratio.
The goal of the study was to improve the UV transmittance of landfill leachate. As wastewater treatment plants switch their disinfection process from chlorine to UV, they realize that landfill leachate interferes with the effectiveness of the disinfection process by blocking UV. The Fenton’s Process achieved moderate improvement in UV transmittance, but generation of solids was considered prohibitive by the landfill.